There were a couple of similar posts of the exact same slider issues that it appears I am having the same results, but the solution suggested is not working for me.
Problem: The second slider on project called Ball (Wine Slider) works great up until smallest mobile size (portrait) causing the other slides disappear. They are still there, just far below the target area. the first slide works correctly. Even with divs installed in each one, the only solution is to move each slide near the mask for it to appear. All other sizes of the project look fine, it is only on this last, small mobile size.
Thank you very much